Global Patent Index - EP 0693569 B1

EP 0693569 B1 20000531 - BAINITE ROD WIRE OR STEEL WIRE FOR WIRE DRAWING AND PROCESS FOR PRODUCING THE SAME

Title (en)

BAINITE ROD WIRE OR STEEL WIRE FOR WIRE DRAWING AND PROCESS FOR PRODUCING THE SAME

Title (de)

BAINITSTANGE ODER STAHLDRAHT ZUM DRAHTZIEHEN UND VERFAHREN ZU DEREN HERSTELLUNG

Title (fr)

BARRE DE BAINITE OU FIL D'ACIER POUR TREFILAGE ET PROCEDE DE PRODUCTION D'UN TEL FIL OU D'UNE TELLE BARRE

Publication

EP 0693569 B1 (EN)

Application

EP 94912060 A

Priority

  • JP 9400574 W
  • JP 7990093 A

Abstract (en)

[origin: WO9423083A1] A bainite rod wire or steel wire having an excellent workability in wire drawing and a process for producing the same. The wire contains on the weight basis 0.80-0.90 % of carbon, 0.10-1.00 % of manganese and 0.10-1.50 % of silicon; if necessary 0.10-1.00 % of chromium; not more than 0.02 % phosphorus and not more than 0.01 % of sulfur; and the balance consisting of iron and inevitable impurities. Further it has a tensile strength and a drawing rate as defined by the following formulae (1) and (2), respectively (1): TS </= 85x(C)+60 and (2): RA >/= -0.875x(TS)+158; wherein C represents carbon content (wt%), TS represents tensile strength (kgf/mm<2>), and RA represents drawing rate (%).

IPC 1-7

C22C 38/18; C21D 8/06; C21D 9/52; C22C 38/08

IPC 8 full level

C21D 1/20 (2006.01); C21D 8/06 (2006.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/18 (2006.01)

CPC (source: EP)

C21D 1/20 (2013.01); C21D 8/06 (2013.01); C21D 9/525 (2013.01); C22C 38/00 (2013.01); C22C 38/18 (2013.01); C21D 2211/00 (2013.01); C21D 2211/002 (2013.01)

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

WO 9423083 A1 19941013; DE 69424782 D1 20000706; DE 69424782 T2 20001123; EP 0693569 A1 19960124; EP 0693569 A4 19960306; EP 0693569 B1 20000531; US 5658399 A 19970819

DOCDB simple family (application)

JP 9400574 W 19940406; DE 69424782 A 19940406; DE 69424782 T 19940406; EP 94912060 A 19940406; US 53011695 A 19951005